I noticed that Plus is not loading with WLM any more a while ago. I currently have WLM 14.0.8050.1202 and plus 4.79b, Win Vista SP1. but I noticed this issue even before the newest beta version of plus, when it was just 4.79. but I said may be because the incompatibility issue.

but even after I installed the newest plus beta, it is not even loading with MSN, I reinstalled WLM and Plus. I even deleted the WLM before reinstallation, but no luck.

can any one tell how what to check?! by the way it is working on my other PCs (Vista and Win7 Beta!!!)

Control Panel > Add/Remove Programs > Messenger Plus! Live, click 'Change/Remove'. Click 'Repair Messenger', follow instructions.

Also, do you have either SweetIM, SmileyCentral or GDI++ installed?

Check your Programs & Features for them as they are incompatible with Messenger Plus and can cause it to not load

@Chris4 >> I did that already, even uninstalled then reinstalled Plus with no luck.

@djdannyp >> I don't have any of these programs. and I am very careful which programs I install to avoid spyware and malware...

This issue is driving me crazy.. is there any option for logging? so I can check the log or post it here? may be it can show what happens exactly.

CookieRevised's reply to Windows Live Messenger BIG PROBLEM!
Do everything listed in that post to remove everything and start from scratch

Thanks a lot MeEtc, that was very helpful